比较级和最高级的用法ppt课件.ppt

《比较级和最高级的用法ppt课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、形容词和副词的比较级和最高级Unit4形容词：是修饰名词（人或事物），表示名词的性质，特征或属性一种词类。它在句中作定语、表语和宾语补足语。副词：用来修饰动词、形容词及其他副词的词叫副词。副词在句中多作状语.一、形容词和副词的概念①形容词作定语一般放在被修饰的名词之前。如:anewbook,twobigtrees等。二、形容词和副词的用法②形容词放在系动词be、look、get、keep、turn、feel、become、seem、grow、smell等之后。如:1.Iamshort.2.Shelooksfi

2、ne.3.Theyturngreen.③如果形容词修饰不定代词something,anything,everything,nothing等时，要放在不定代词后面。如:somethinginterestingnothingnew④副词放在所修饰的动词之后、形容词和副词之前。如果前面是行为动词，则后面用副词。如:1.Sheworkshard.（修饰动词）2.Iamverybusy.（修饰形容词）3.Herunstooquickly.（修饰副词）4.Weplayhappily.（修饰动词）⑤通常在形容词后加-ly变

3、成副词。slow→______real→______usual→______careful→______easy→______happy→______heavy→______angry→______slowlyusuallyeasilyheavilyreallycarefullyhappilyangrily构成方法原级比较级最高级单音节词和少数多音节词一般在词尾加-er/ə/或-est/ist/coldcoldercoldestfastfasterfastest以字母e结尾的形容词，加-r或-stniceni

4、cernicestlargelargerlargest重读闭音节词只有一个辅音字母时，应先双写辅音字母；再加-es或-estbigbiggerbiggesthothotterhottest以“辅音字母+y”结尾的双音节词，先改“+y”结尾的双音节词，先改“y”为“i”,再加-er或-esteasyeasiereasiestearlyearlierearliest多音节词和部分双音节词在词前加more或mosttiredmoretiredmosttiredeasilymoreeasilymosteasily单音

5、节和少数多音节的形容词和副词的比较级和最高级的构成分规则和不规则。变化如下：双音节或多音节形容词和副词的比较级和最高级的特殊情况：1、一般是在原级前加more构成比较级，在原级前加most构成最高级。beautiful–morebeautiful–mostbeautifulinteresting–moreinteresting–mostinterestingdangerous–moredangerous–mostdangerous2、某些单音节形容词，加more,most构成比较级和最高级。glad–more

6、glad–mostgladpleased–morepleased–mostpleasedtired–moretired–mosttiredoften-moreoften-mostoften不规则变化，要多加注意哦！good→→bad→→many→→little→→well→→badly→→much→→far→→betterbestworseworstmoremostlessleastbetterbestfartherfarthestworseworstmoremostimportant____________

7、___________________easy______________________________________wet_______________________________________happy____________________________________careful__________________________________thin___________________________________good_____________________________

8、_______hot______________________________________easily____________________________________many____________________________________nice____________________________________big____________________________